6=u-v

Solution for 6=u-v equation:

Simplifying
6 = u + -1v

Solving
6 = u + -1v

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-1u' to each side of the equation.
6 + -1u = u + -1u + -1v

Combine like terms: u + -1u = 0
6 + -1u = 0 + -1v
6 + -1u = -1v

Add '-6' to each side of the equation.
6 + -6 + -1u = -6 + -1v

Combine like terms: 6 + -6 = 0
0 + -1u = -6 + -1v
-1u = -6 + -1v

Divide each side by '-1'.
u = 6 + v

Simplifying
u = 6 + v